Load Specifications
Load data in caliber 9 mm Para with .355 | 115gr | Sierra Sports Master bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 20, Alliant UNIQUE and Hodgdon CFE Pistol.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 60% and propellant combustion ≥ 80%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2* | <<locked>> | 88% | 29,950 psi | 88% | 1099 fps | 94.1% |
| Accurate Solo 1000 | <<locked>> | 88% | 28,689 psi | 84% | 1053 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 96% | 28,326 psi | 83% | 1099 fps | 99.8% |
| ADI AP 70N | <<locked>> | 80% | 28,210 psi | 83% | 1119 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 28,195 psi | 83% | 948 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 30,110 psi | 88% | 1001 fps | 100% |
| ADI AS 30 | <<locked>> | 92% | 30,168 psi | 89% | 1053 fps | 100% |
| ADI AS 50N | <<locked>> | 88% | 29,675 psi | 87% | 1086 fps | 100% |
| Alliant BE-86 | <<locked>> | 96% | 29,631 psi | 87% | 1115 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 84% | 28,848 psi | 85% | 1142 fps | 97.4% |
| Alliant Green Dot | <<locked>> | 92% | 29,182 psi | 86% | 1083 fps | 100% |
| Alliant Herco*ᴾ | <<locked>> | 100% | 20,450 psi | 60% | 1010 fps | 92.3% |
| Alliant RED DOT | <<locked>> | 92% | 28,558 psi | 84% | 1056 fps | 100% |
| Alliant Sport Pistol | <<locked>> | 80% | 29,225 psi | 86% | 1145 fps | 96.9% |
| Alliant UNIQUEᴾ | <<locked>> | 100% | 28,819 psi | 85% | 1155 fps | 96.9% |
| Baschieri & Pellagri 100 | <<locked>> | 92% | 29,588 psi | 87% | 1073 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 20,479 psi | 60% | 981 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 88% | 30,197 psi | 89% | 1109 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 72% | 29,994 psi | 88% | 1135 fps | 99.6% |
| Hodgdon Clays | <<locked>> | 96% | 30,008 psi | 88% | 1001 fps | 100% |
| Hodgdon HP38² | <<locked>> | 68% | 29,965 psi | 88% | 1106 fps | 100% |
| Hodgdon Longshot*² | <<locked>> | 76% | 27,209 psi | 80% | 1115 fps | 88.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 8,833 psi | 26% | 689 fps | 96.6% |
| Hodgdon Universal | <<locked>> | 92% | 29,515 psi | 87% | 1135 fps | 100% |
| Lovex S011² | <<locked>> | 76% | 27,586 psi | 81% | 1056 fps | 100% |
| Lovex S020 | <<locked>> | 88% | 27,978 psi | 82% | 1112 fps | 98% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 27,746 psi | 81% | 1086 fps | 99.8% |
| Maxam CSB 2ᴾ | <<locked>> | 100% | 28,631 psi | 84% | 1138 fps | 100% |
| Maxam CSB 3 | <<locked>> | 96% | 29,602 psi | 87% | 1099 fps | 100% |
| Maxam CSB 4 | <<locked>> | 92% | 30,574 psi | 90% | 1093 fps | 100% |
| Maxam CSB 5 | <<locked>> | 84% | 29,109 psi | 85% | 1037 fps | 100% |
| Ramshot Silhouette* | <<locked>> | 80% | 27,775 psi | 81% | 1122 fps | 94.1% |
| Ramshot True Blue*² | <<locked>> | 76% | 29,254 psi | 86% | 1138 fps | 89.5% |
| Ramshot Zip² | <<locked>> | 68% | 28,703 psi | 84% | 1096 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 88% | 29,051 psi | 85% | 1132 fps | 100% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 7,644 psi | 22% | 659 fps | 89.8% |
| ReloadSwiss RS 20ᴾ | <<locked>> | 100% | 26,658 psi | 78% | 1135 fps | 97.8% |
| Rottweil P 801 | <<locked>> | 80% | 28,993 psi | 85% | 1093 fps | 100% |
| SNPE Vectan A0ᴾ | <<locked>> | 100% | 28,964 psi | 85% | 1102 fps | 96.5% |
| SNPE Vectan A1 | <<locked>> | 88% | 29,515 psi | 87% | 1093 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 88% | 28,355 psi | 83% | 1083 fps | 99% |
| SNPE Vectan BA10 | <<locked>> | 80% | 30,081 psi | 88% | 1001 fps | 100% |
| SNPE Vectan BA9 1/2 | <<locked>> | 96% | 30,821 psi | 90% | 1135 fps | 99.9% |
| Somchem MP200 | <<locked>> | 92% | 30,443 psi | 89% | 1158 fps | 96.2% |
| Somchem MS200 | <<locked>> | 96% | 29,820 psi | 87% | 1132 fps | 97.8% |
| Vihtavuori 3N37*ᴾ | <<locked>> | 100% | 28,601 psi | 84% | 1148 fps | 89.6% |
| Vihtavuori N310² | <<locked>> | 68% | 28,210 psi | 83% | 1001 fps | 100% |
| Vihtavuori N320 | <<locked>> | 88% | 28,195 psi | 83% | 1079 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 15,969 psi | 47% | 863 fps | 100% |
| Vihtavuori N330 | <<locked>> | 92% | 28,631 psi | 84% | 1135 fps | 100% |
| Vihtavuori N340 | <<locked>> | 96% | 28,413 psi | 83% | 1119 fps | 96.7% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 24,250 psi | 71% | 1076 fps | 87.1% |
| Winchester 231² | <<locked>> | 76% | 28,703 psi | 84% | 1096 fps | 100% |
| Winchester 244² | <<locked>> | 64% | 28,848 psi | 85% | 1089 fps | 100% |
| Winchester AutoComp ᴾ | <<locked>> | 100% | 29,863 psi | 88% | 1132 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2*² | <<locked>> | 72% | 18,985 psi | 56% | 928 fps | 87.1% |
| Accurate Solo 1000² | <<locked>> | 60% | 14,243 psi | 42% | 814 fps | 98.7% |
| Accurate Solo 1250*² | <<locked>> | 60% | 10,660 psi | 31% | 755 fps | 88% |
| ADI AP 70N² | <<locked>> | 60% | 16,012 psi | 47% | 906 fps | 95.7% |
| ADI APS 350² | <<locked>> | 60% | 17,854 psi | 52% | 810 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 16,563 psi | 49% | 817 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 14,779 psi | 43% | 820 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 15,229 psi | 45% | 850 fps | 98.8% |
| Alliant BE-86*² | <<locked>> | 60% | 11,197 psi | 33% | 781 fps | 92.3% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 14,460 psi | 42% | 863 fps | 86.9% |
| Alliant Green Dot² | <<locked>> | 60% | 14,141 psi | 41% | 827 fps | 98.2% |
| Alliant Herco* | <<locked>> | 84% | 14,214 psi | 42% | 873 fps | 85.8% |
| Alliant RED DOT² | <<locked>> | 60% | 13,706 psi | 40% | 810 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 16,781 psi | 49% | 919 fps | 88.6% |
| Alliant UNIQUE*² | 3.4 gr | 68% | 13,808 psi | 41% | 863 fps | 85.1% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 12,459 psi | 37% | 784 fps | 95.5% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 60% | 7,527 psi | 22% | 663 fps | 90.1% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 12,807 psi | 38% | 827 fps | 97% |
| Hodgdon CFE Pistol² | 4.2 gr | 60% | 19,624 psi | 58% | 978 fps | 96.2% |
| Hodgdon Clays² | <<locked>> | 60% | 13,634 psi | 40% | 758 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 22,220 psi | 65% | 997 fps | 99.5% |
| Hodgdon Longshot*² | <<locked>> | 72% | 23,946 psi | 70% | 1063 fps | 86% |
| Hodgdon TrailBoss*² | <<locked>> | 64% | 4,554 psi | 13% | 499 fps | 85.2% |
| Hodgdon Universal*² | <<locked>> | 60% | 12,720 psi | 37% | 820 fps | 92.2% |
| Lovex S011² | <<locked>> | 60% | 17,579 psi | 52% | 896 fps | 97.3% |
| Lovex S020*² | <<locked>> | 60% | 12,111 psi | 36% | 810 fps | 85.7% |
| Maxam CSB 1*² | <<locked>> | 60% | 10,327 psi | 30% | 738 fps | 87.5% |
| Maxam CSB 2*² | <<locked>> | 60% | 9,558 psi | 28% | 768 fps | 92.9% |
| Maxam CSB 3² | <<locked>> | 60% | 11,995 psi | 35% | 784 fps | 95% |
| Maxam CSB 4² | <<locked>> | 60% | 13,634 psi | 40% | 820 fps | 98.6% |
| Maxam CSB 5² | <<locked>> | 60% | 15,635 psi | 46% | 843 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 64% | 17,622 psi | 52% | 942 fps | 86.6% |
| Ramshot True Blue*² | <<locked>> | 68% | 22,669 psi | 67% | 1037 fps | 85.1% |
| Ramshot Zip² | <<locked>> | 60% | 22,394 psi | 66% | 1004 fps | 99.2% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 13,198 psi | 39% | 869 fps | 99.1% |
| ReloadSwiss RS 14* | <<locked>> | 84% | 6,048 psi | 18% | 587 fps | 85.2% |
| ReloadSwiss RS 20*² | 3.7 gr | 72% | 13,373 psi | 39% | 863 fps | 86.5% |
| Rottweil P 801² | <<locked>> | 60% | 15,969 psi | 47% | 899 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 72% | 14,750 psi | 43% | 846 fps | 85.9% |
| SNPE Vectan A1*² | <<locked>> | 60% | 14,025 psi | 41% | 827 fps | 94.6% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 13,445 psi | 39% | 810 fps | 89.5% |
| SNPE Vectan BA10² | <<locked>> | 60% | 18,927 psi | 56% | 856 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 60% | 12,807 psi | 38% | 810 fps | 90.9% |
| Somchem MP200*² | <<locked>> | 68% | 15,780 psi | 46% | 896 fps | 85.8% |
| Somchem MS200*² | <<locked>> | 64% | 13,445 psi | 39% | 827 fps | 85.9% |
| Vihtavuori 3N37* | <<locked>> | 92% | 22,785 psi | 67% | 1060 fps | 85.8% |
| Vihtavuori N310² | <<locked>> | 60% | 21,843 psi | 64% | 922 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 12,618 psi | 37% | 820 fps | 98.3% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 6,454 psi | 19% | 614 fps | 96.9% |
| Vihtavuori N330*² | <<locked>> | 60% | 11,574 psi | 34% | 814 fps | 91.5% |
| Vihtavuori N340*² | <<locked>> | 68% | 13,721 psi | 40% | 843 fps | 85.4% |
| Vihtavuori N350* | <<locked>> | 96% | 22,118 psi | 65% | 1040 fps | 85.4% |
| Winchester 231² | <<locked>> | 60% | 18,144 psi | 53% | 925 fps | 97.5% |
| Winchester 244² | <<locked>> | 60% | 24,831 psi | 73% | 1037 fps | 100% |
| Winchester AutoComp *² | <<locked>> | 60% | 10,399 psi | 31% | 751 fps | 85.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
* not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.
² fill rate low - you might want to consider using a filler to ensure proper ignition.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 55 powders for 9 mm Para loaded with the .355 | 115gr | Sierra Sports Master. Somchem MP200 delivers the highest muzzle velocity at 1,158 fps; across all powders the maximum-charge window runs from 659 fps to 1,158 fps. Alliant Herco gives the best case fill at 100 %, and 46 of the 55 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (235 MPa), the top charges use 22–90 %, leaving at least 10 % headroom. Alliant Herco, Alliant UNIQUE, Baschieri & Pellagri 102 Pistol reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 20, Alliant UNIQUE, Hodgdon CFE Pistol rank at the top here: for 9 mm Para with the .355 | 115gr | Sierra Sports Master they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 2, Alliant Herco, Hodgdon Longshot burn incompletely and react more sensitively to barrel length and temperature. Accurate No. 2, Accurate Solo 1000, Accurate Solo 1250 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.